Home / 6,432.12-8,877.84-4,190.12

Finding the Fourth Proportional to 6,432.12, 8,877.84 and 4,190.12

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Solution

The fourth proportional to 6,432.12, 8,877.84 and 4,190.12 is: 5,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.12 : 8,877.84 = 4,190.12 : x
  2. Step 2: Convert to fraction form
    6,432.12/8,877.84 = 4,190.12/x
  3. Step 3: Cross multiply
    6,432.12x = 8,877.84 × 4,190.12
  4. Step 4: Simplify right side
    6,432.12x = 37,199,214.94
  5. Step 5: Solve for x
    x = 37,199,214.94/6,432.12
  6. Step 6: Final answer
    x = 5,783.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.